Black Hat SEO or Black Hat Search Engine Optimization are defined as tools or techniques used to achieve high ranking in search engines such as Google, Yahoo, Bing, etc using unethical and ways which don't subscribe to the rules and guidelines set by the search engines. Black Hat SEO is done by SEO consultants who know the functioning of search engines and know how to manipulate the search engines for their benefits. Black Hat SEO techniques generally overlook and violate the guidelines set by search engines. Black Hat SEO techniques show one content to the spiders and crawlers, some other thing to the visitors which is clearly violates the Search Engines rules. Apart from violating rules, visitors get a very bad experience which has the potential to effect the popularity of search engines and their business. Black Hat SEO techniques are generally who used by consultants or webmasters who want to achieve top ranking in short time, for which they go over the board and violate guidelines set by Search Engines. Black Hat SEO techniques used by consultants and webmasters can be termed as short sighted solutions for long term solutions.